Hanna Instruments HI7091M
Reducing Pretreatment Solution OPR standard solutions
Order #: HI7091M
Mfg #: HI7091M
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Questions about this product?
- ORP standard solutions allow you to test the precision of ORP electrodes
- For example, by immersing the electrode in HI 7020 solution, you should read within the 200 to 275 mV range (@20°C/68°F)
- If the reading is outside the indicated interval, clean and condition your ORP electrode
- Bottle 230 mL